Name

Performance

Resistance

Maximum working temperature

PVC

(Polyvinylchloride)

Medium working temperature of hard unyielding thermal engineering plastic.

Alkali, acid, salt solvent, oil, fat, diesel

≈60℃

PE

(Polyethylene)

Hard unyielding plastic, suitable for low temperature, low water absorption

Alkali, acid, salt solvent, many organic solvents such as alcohol, ester, ketone

≈60℃

PP（Polypropylene）

Hardness and unyieldingness> PE, but as temperature decreases the hardness also can be reduced, and the working temperature is higher than PE

Alkali, acid, salt solvent, many organic solvents such as alcohol, ester, ketone

≈100℃

PVDF

(Polyvinyldene-fluoride)

Resistance to high temperature and low temperature

Alkali, acid, salt solvent, many organic solvents such as alcohol, ester, ketone, nitric acid, H2O2 and almost all chemicals

≈120℃

PTFE (Polytetrafluoroethylene-“Teflon”)

Very high working temperature, reduced hardness, low creep resistance

≈180℃

Name

DIN 7728

Proportion
g/cm3

Conversion coefficient

Polypropylene

PP

0,9-0,92

Polypropylene，heat stabilized

PPH

0,915

1

Polyethylene

HDPE

0,95

1,04

Polyvinylchloride

PVC

1,38

1,51

Polyvinylchloride,chlorinated

C-PVC

1,55

Polyether Sulfone

PES

1,37

1,50

Fluorinated Polymer

PVDF

1,78

PFA

2,15

FEP

2,15

2，35

ETFE/ECTFE

1,68